DTC P0850-11: Park/Neutral Switch Circuit Short to Ground; DTC P0850-15: Park/Neutral Switch Circuit Short to Auxiliary Battery or Open [11/2021 - ]: Description
WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.
The P position switch and shift control ECU are built into the transmission floor shift assembly. The shift control ECU judges operation of the P position switch.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P0850-11 | Park/Neutral Switch Circuit Short to Ground | When the ignition switch is ON and the battery voltage is a certain value or more, it is detected that the P position switch is stuck low (1 trip detection logic) |
Transmission floor shift assembly (shift control ECU) | Does not come on | Multi-information Display Error Message
|
Transmission | A | SAE: P0851 |
| P0850-15 | Park/Neutral Switch Circuit Short to Auxiliary Battery or Open | When the ignition switch is ON and the battery voltage is a certain value or more, it is detected that the P position switch is stuck high (1 trip detection logic) |
Transmission floor shift assembly (shift control ECU) | Does not come on | Multi-information Display Error Message
|
Transmission | A | SAE: P0852 |